US3432598A - Antibiotic sl 2266 - Google Patents

Antibiotic sl 2266 Download PDF

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US3432598A
US3432598A US686958A US3432598DA US3432598A US 3432598 A US3432598 A US 3432598A US 686958 A US686958 A US 686958A US 3432598D A US3432598D A US 3432598DA US 3432598 A US3432598 A US 3432598A
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antibiotic
methanol
strain
new
peter
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Hans-Peter Sigg
Christian Stoll
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Sandoz AG
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Sandoz AG
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P1/00—Preparation of compounds or compositions, not provided for in groups C12P3/00 - C12P39/00, by using microorganisms or enzymes
    • C12P1/02—Preparation of compounds or compositions, not provided for in groups C12P3/00 - C12P39/00, by using microorganisms or enzymes by using fungi
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/30—Microbial fungi; Substances produced thereby or obtained therefrom
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14—Fungi; Culture media therefor
    • C12N1/145—Fungal isolates
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
    • C12R2001/00—Microorganisms ; Processes using microorganisms
    • C12R2001/645—Fungi ; Processes using fungi

Definitions

  • ANTIBIOTIC SL 2266 Filed Nov. :50, 1967 Sheet 3 of 4 FIGURE 3 INVENTORSI Hons-Peter Sigg Christian Stoll ATTORNEY United States Patent 16,791/ 65 US. Cl. 424-122 Int. Cl. C07g 11/00; A61k 21/00 2 Claims ABSTRACT OF THE DISCLOSURE
  • a new antibiotic SL 2266, and its salts, is provided. It is prepared by cultivating a new strain of the fungus species Sordaria araneosa. The antibiotic has fungistatic activity and is used as a disinfectant in e.g., wash solutions. It also has an inhibiting effect on the increase of tumour cells in vitro and may be used to restrict offshoots from the tumours in the transplantation of tumours.
  • the present invention provides a new antibiotic, hereinafter named SL 2266, and its salts with suitable organic and inorganic bases.
  • the present invention further provides a process for the production of SL 2266 and its salts, characterized in that a new strain of the fungus species Sordaria araneosa is cultivated in a nutrient solution and the said antibiotic is isolated from the culture medium and purified in manner known per se, erg. by extraction or adsorption, and optionally converted into its salts by reacting with suitable organic and inorganic bases in manner known per se.
  • the new strain of the fungus species Sordaria araneosa Cain was isolated from a jungle soil sample from Dartonfield (Ceylon) and a specimen of this strain has been deposited with the United States Department of Agriculture (Northern Utilization Research and Development Division), Peoria, 111., U.S.A., under the reference NRRL 3196.
  • the new strain corresponds morphologically to the description of the fungus species made by Roy F. Cain, University of Toronto Studies, Biological series, No. 38,1934.
  • the fungus strain NRRL 3196 of the fungus species Sordaria araneosa forms a brownish substrate mycelium and a thin, light aerial mycelium when cultivated on a malt/yeast extract agar. On sterilized feces samples it grows at 27 with the formation of a compact, furry, grey-white coloured aerial mycelium.
  • the bottle-shaped, submerged or partially superficial perithecia measure 550-700 t. They are light brown and are covered by compact, long septalized hairs.
  • the club-shaped asci have about 250 spores each and measure 300-350 x 52-6311. The ascospores are formed in many rows and measure 11-14 x 6.58,u. As the ripening process progresses they turn dark brown and are opaque.
  • antibiotic SL 2266 using strains which may be obtained from the above mentioned strain of Sordaria araneosa Cain, for example, by selection or mutation by ultraviolet or X-ray irradiation or other measures, for example by treatment of laboratory cultures with suitable chemicals.
  • the new strain of Sordaria araneosa Cain may be cultivated on various nutrient media containing the usual nutrients.
  • Suitable nutrients for this fungus strain are, for example, nutrients normally used for carbon-heterotrophic organisms; specific examples of the carbon source are glucose, stretch, dextrin, lactose and cane sugar; organic or inorganic nitrogen containing compounds may be used as the nitrogen source, specific examples being peptone, yeast and meat extracts, ammonium sulphate, ammonium nitrate and amino acids; the usual mineral salts and trace elements are also suitable for use in the nutrients.
  • One method of producing the antibiotic SL 2266 consists of inoculating a liquid nutrient medium with conidia or mycelia of the new strain of Sordaria wraneosa Cain.
  • the cultivation may, for example, be effected under aerobic conditions in static surface culture or in submerged culture while shaking or in fermenters while aerating with air or oxygen whilst stirring.
  • the incubation temperature may be 20 to 35 C. It is preferred, however, to use a temperature between 20 and 30 C. and a pH value of 5 to 7, in which case the culture is incubated for 4 to 10 days.
  • the new antibiotic is isolated, preferably by extracting the culture filtrate with ethylene chloride and the mycelium with methanol, but other organic solvents, e.g. benzene, ethyl acetate, butyl acetate, chloroform and acetone, may likewise be used.
  • the extracts are subsequently concentrated and the active compound extracted with water having a pH value of 8-10.
  • the alkaline phases are acidified to a pH of 2-5, and extracted with an organic solvent, e.g. ethyl acetate.
  • the solvent is removed from the extract, whereupon the crude antibiotic is obtained; this is further purified chromatographically on adsorbing agents, e.g. activated alumina, silica gel and ion exchange resins, by counter current distribution or by precipitation.
  • Infrared spectrum inter alia bands at 3550, 2950, '1710, 1460, 1390, 1310, 1170, 1090, 1060, 1030, 980, 870 cm? (in CH Cl ( Figure 2).
  • Infrared spectrum inter alia bands at 3450, 2950, 1705, 1580, 1470, 1450, 1400, 1180, 1090, 1060, 1025, 1010, 90, 795- (l mg./300 mg. KBr) (FIGURE 4).
  • the antibiotic SL 2266 is a disinfectant which has a fungistatic activity. It is especially effective against phycomycetes e.g. Absidia cylindrospora, Absidia orchidis and Rlzizopus oryzae, known to produce mucormycosis. SL 2266 is even more effective against various yeasts which cause candidiasis, e.g. Candida albicans and Candida tropicalis. The antibiotic furthermore shows a good activity against fungi which cause histoplasmosis, e.g. H ist plasma capsulatum. In view of the fungistatic activity of SL 2266, it is readily applied to sites where the abovenoted fungi are found. It is, e.g.
  • the antibiotic itself is rendered soluble by surface active agents such as Tween 80 (sorbitan monooleate polyoxyalkylene derivative) and may therefore alternatively be incorporated in such surface active agents.
  • the said aqueous or detergent solutions suitably contain 0.1 to of the antibiotic. It can also be sprayed in an infected area or dusted, e.g. in the form of its potassium salt, on a substrate contaminated with any of the above-noted fungi. For this purpose it is mixed with an inert, solid carrier, e.g. starch or tale, to give a concentration of the antibiotic of 1 to 5%.
  • test samples are punched into the solidified agar plates under sterile conditions and after removing the punched agar piece the test samples are transferred to pipettes in portions of 0.10 ml.
  • the test plates are subsequently incubated at 27-37" C. in an incubator for 1-4 days until the fungi show an abundant growth. The average diameters of the inhibition areas (areas without growth) of several parallel tests are measured.
  • the antibiotic SL 2266 does not show a detrimental effect towards the increase of bacteria, so that its specific effect against fungi is more pronounced.
  • SL 2266 also has a strong inhibiting effect on the increase of tumour cells as determined by the inhibition of the increase of tumour cells (mouse mastocytoma P 815 in vitro.
  • the DE-50 of SL 2266 towards these cells is 0.1 ug/ml.
  • SL 2266 is characterized by a low toxicity.
  • the acute toxicity of SL 2266 in white mice amounts to a DL-SO which is greater than 250 mg./ kg. i.v. or per os. It may therefore be used, in the transplanting of tumours, to restrict off-shoots from the tumour both prior to and immediately after transplanting by contacting the surface of the tumours being transplanted with, e.g. a solution of the antibiotic in ethanol.
  • Example 1 10 litres of a nutrient solution containing G. Glucose 20 Malt extract (Schweiz. Ferment AG) 2 Peptone 2 Bacto-yeast extract (Difco) 2 KH PO 2 MgSO -7H O 2 and Demineralized water to make up one litre.
  • Example 2 Potassium salt of SL 2266 1.66 g. of SL 2266 are dissolved in 40 ml. of methanol/ water (1:1) and titrated with 0.5 N potassium hydroxide until a pH of 7.0 is obtained. The solution is filtered over a thin layer of active charcoal and dried in a vacuum. Crystallization of the residue from ethyl acetate/ methanol yields colourless crystals of the potassium salt having a melting point of 253255.
  • Example 3.fiSodium salt of SL 2266 0.50 g. of SL 2266 are dissolved in 50 ml. of methanol/ water (1:1) and titrated with 0.1 N sodium hydroxide until a pH of 7.0 is obtained. The solution is filtered over a thin layer of active charcoal and dried in a vacuum. After triturating with ether the sodium salt is obtained in the form of a colourless powder.
  • Infrared spectrum inter alia bands at 3550, 2950, 1710, 1460, 1390, 1310, 1170, 1090, 1060, 1030, 980, 870 cm. (in CH CI 2.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Mycology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • General Engineering & Computer Science (AREA)
  • Virology (AREA)
  • Biochemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Medicinal Chemistry (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Botany (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Environmental Sciences (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
US686958A 1965-12-06 1967-11-30 Antibiotic sl 2266 Expired - Lifetime US3432598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1679165A CH465771A (de) 1965-12-06 1965-12-06 Verfahren zur Herstellung eines neuen Antibioticums

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US (1) US3432598A (xx)
AT (1) AT269356B (xx)
BE (1) BE690740A (xx)
BR (1) BR6685093D0 (xx)
CH (1) CH465771A (xx)
CS (1) CS152272B2 (xx)
DE (1) DE1617801A1 (xx)
DK (1) DK113353B (xx)
ES (1) ES334165A1 (xx)
FI (1) FI43723B (xx)
FR (2) FR1503235A (xx)
GB (1) GB1162027A (xx)
NL (1) NL6616955A (xx)
SE (1) SE329372B (xx)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998011891A1 (en) * 1996-09-18 1998-03-26 Merck & Co., Inc. Sordarin and derivatives thereof for use as crop antifungal agents
US5965612A (en) * 1997-08-22 1999-10-12 Merck & Co., Inc. 4-cyano-4-deformylsordaricin derivatives
US5972996A (en) * 1997-08-22 1999-10-26 Merck & Co., Inc. 4-cyano-4-deformylsordarin derivatives
US6096511A (en) * 1997-06-10 2000-08-01 Merck & Co., Inc. Protein elongation factor 2 as a target for antifungal and antiparasitic agents
US6436395B1 (en) 1996-09-18 2002-08-20 Merck & Co., Inc. Rosellinia subiculata ATCC 74386 and fungus ATCC 74387 for producing sordarin compounds for fungi control
US20020160441A1 (en) * 1998-06-02 2002-10-31 Merck & Co., Inc. Protein elongation factor 2 as a target for antifungal and antiparasitic agents

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU704405B2 (en) * 1994-11-08 1999-04-22 Glaxo Wellcome S.A. Antifungal sordaridin derivatives
US6136853A (en) * 1997-10-03 2000-10-24 Merck & Co., Inc. Sordarin derivatives
US6410528B1 (en) 1998-05-11 2002-06-25 Glaxo Wellcome S.A. Morpholino ethers
MA26628A1 (fr) * 1998-05-11 2004-12-20 Glaxo Wellcome Sa Morpholino ethers
AU760975B2 (en) 1998-10-26 2003-05-22 Merck & Co., Inc. Microbial transformation product
WO2003007878A2 (en) 2001-07-18 2003-01-30 Merck & Co., Inc. Antifungal agents of sordarin derivatives

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334015A (en) * 1966-04-07 1967-08-01 Bristol Myers Co Antibiotic streptogan and process for preparation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334015A (en) * 1966-04-07 1967-08-01 Bristol Myers Co Antibiotic streptogan and process for preparation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998011891A1 (en) * 1996-09-18 1998-03-26 Merck & Co., Inc. Sordarin and derivatives thereof for use as crop antifungal agents
AU729659B2 (en) * 1996-09-18 2001-02-08 Merck & Co., Inc. Sordarin and derivatives thereof for use as crop antifungal agents
US6436395B1 (en) 1996-09-18 2002-08-20 Merck & Co., Inc. Rosellinia subiculata ATCC 74386 and fungus ATCC 74387 for producing sordarin compounds for fungi control
US6096511A (en) * 1997-06-10 2000-08-01 Merck & Co., Inc. Protein elongation factor 2 as a target for antifungal and antiparasitic agents
US5965612A (en) * 1997-08-22 1999-10-12 Merck & Co., Inc. 4-cyano-4-deformylsordaricin derivatives
US5972996A (en) * 1997-08-22 1999-10-26 Merck & Co., Inc. 4-cyano-4-deformylsordarin derivatives
US20020160441A1 (en) * 1998-06-02 2002-10-31 Merck & Co., Inc. Protein elongation factor 2 as a target for antifungal and antiparasitic agents

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CS152272B2 (xx) 1973-12-19
DK113353B (da) 1969-03-17
SE329372B (xx) 1970-10-12
BE690740A (xx) 1967-06-05
AT269356B (de) 1969-03-10
FI43723B (xx) 1971-03-01
BR6685093D0 (pt) 1973-12-27
FR6036M (xx) 1968-05-13
NL6616955A (xx) 1967-06-07
GB1162027A (en) 1969-08-20
ES334165A1 (es) 1968-01-16
FR1503235A (fr) 1967-11-24
CH465771A (de) 1968-11-30
DE1617801A1 (de) 1970-08-20

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